Burner for producing a stable flame with a high concentration of heat stabilized by a shock wave



3,333,619 CENTRATON M. DENIS BURNER FOR PRODUCING A STABLE FLAME WITH A HIGH CON OP HEAT STABLZED BY A SHOCK WAVE 0rigina1 Fi1ed June 25 1963 5 Sheetssheet 1 Au l, 1967 M. DENIS 3,333,619

BURNER FOR PRODUCING A STABLE PLAME WITH A HIGH CONGENTRATION OF HEAT STABILIZED BY A SHOCK WAVE Org1na1 F11ed June 25' 1963 5 SheetS-Sheet 2 Au 1, 1967 M` DENIS 3,333,6l9

BURNER FOR PRODUCING A STABLE PLAMB WITH A HGH CONCENTRATION OF HEAT STABILIZED BY A SHOCK WAVE 0rigina1 F11ed June 25 1963 5 Sheets-Sheet 3 Aug. 1, 1967 M' DENIS 3,333,619

BURNER FOR PRODUCING A STABLE FLAME WITH A HIGH CONCENTRATION OP HEAT STABILIZED BY A SHOCK WAVE Origina1 Fi1ed June 25 1963 5 Sheets-Sheet 4 Au 1 1967 M. DENIS 3,333,619

BURNER FOR PRODUCING A STABLE FLAME WITH A HGH CONCENTRATON OP HEAT STABILIZED BY A SHOCK WAVE Orig1na1 Fi1ed june 25 1963 5 Sheets-Sheet 5 

1. A BURNER FOR PRODUCING A STABLE FLAME IN A HIGHSPEED FLUID FIELD COMPRISING, IN COMBINATION, FIRST CONDUIT MEANS FOR GUIDING A COMBUSTION-SUSTAINING FLUID THERETHROUGH FED UNDER PRESSURE AND AT SUBSONIC SPEED INTO ONE END OF SAID FIRST CONDUIT MEANS, SAID FIRST CONDUIT MEANS HAVING AN OUTLET END OPPOSITE SAID ONE END, AND HAVING IN THE REGION OF SAID OUTLET END THEREOF A VENTURI-SHAPED INNER SURFACE PORTION COMPOSED OF A PAIR OF TRUNCATED CONE SURFACES WHICH HAVE A COMMON TOP PLANE LOCATED INWARDLY OF SAID OUTLET END OF SAID FIRST CONDUIT MEANS AND WHICH DIVERGE IN OPPOSITE DIRECTIONS AWAY FROM SAID COMMON TOP PLANE THUS DEFINING WITHIN SAID FIRST CONDUIT MEANS AN ANNULAR VENTURI-SHAPED PASSAGE HAVING IN SAID TOP PLANE SUCH A SMALL CROSS-SECTION THAT THE COMBUSTION-SUSTAINING FLUID PASSING THERETHROUGH WILL OBTAIN SONIC SPEED; SECOND CONDUIT MEANS FOR GUIDING A FUEL FLUID THERETHROUGH UNDER PRESSURE AND AT SUBSONIC SPEED, SAID SECOND CONDUIT MEANS HAVING AN OUTFLOW END; AND A PLURALITY OF INDEPENDENT PERIPHERALLY SPACED CHANNELS EACH HAVING AN OUTER END COMMUNICATING WITH SAID OUTFLOW END OF SAID SECOND CONDUIT MEANS AND AN INNER END COMMUNICATING WITH SAID FIRST CONDUIT MEANS IN THE REGION OF THE NECK OF SAID VENTURI-SHAPED INNER SURFACE PORTION OF SAID FIRST CONDUIT MEANS SO THAT THE FUEL AND COMBUSTION-SUSTAINING FLUID PASSING THROUGH SAID FIRST AND SECOND CONDUIT MEANS WILL MIX IN THE DIVERGENT PORTION OF SAID VENTURI-SHAPED PASSAGE AFTER SAID COMBUSTIONSUSTAINING FLUID HAS ATTAINED SONIC SPEED AND MEANS FOR PRODUCING A SHOCK WAVE DOWNSTREAM OF SAID NECK. 